Malicious PDF — malware analysis report

Static analysis result for SHA-256 e00a97f7fbc80b24…

MALICIOUS

PDF

48.8 KB Created: 2020-09-18 12:59:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e3e81c1f20278c734a321c760a8b4752 SHA-1: 56eb640b1869c3533372740553c48ed7ef172fef SHA-256: e00a97f7fbc80b24fc12342bb828c7383dcf7e028353b108454d459c68dbafef
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a prominent link to a malicious redirector, identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The document body, though heavily obfuscated, contains the text 'Beautiful creatures tarot pdf' and the URL https://ttraff.club/wix?keyword=beautiful+creatures+tarot+pdf, suggesting a lure for users interested in tarot. The PDF also hosts a large number of external links, as indicated by PDF_SEO_LINK_FARM, many of which point to benign files but serve to obscure the malicious redirector. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.club/wix?keyword=beautiful+creatures+tarot+pdf
    • http://files.presentingyourpast.com/uploads/1/3/0/9/130969826/84e9a7af6278.pdf
    • http://zoxeza.davezoby.com/uploads/1/3/2/7/132741508/sokozevovuxibosabi.pdf
    • https://5c73592f-6680-465d-bb19-147681e47e71.filesusr.com/ugd/68ec51_5f0ad83af5994305a87e2d3dd4121a2f.pdf?index=true
    • https://222e0935-d8c8-4894-ba5a-3e34b3aeed02.filesusr.com/ugd/9117e0_3d4c461e337645a2a57d2686085a26a5.pdf?index=true
    • https://6e97cc99-7f4a-441f-bd65-3d635f716a18.filesusr.com/ugd/61804c_7713e8aeaed5473da2ff255130594632.pdf?index=true
    • https://3b57d978-671c-4927-87cc-61ff583bc9bf.filesusr.com/ugd/7c1f05_a7b659866fdf40f0a34d7fc3b20e396b.pdf?index=true
    • https://6e542d6a-744e-433b-a995-fbcd53fe37fc.filesusr.com/ugd/3225da_c9efd8add81644eb840599e10fd25033.pdf?index=true
    • https://464df62d-036b-4ab7-9715-e3e987de16e0.filesusr.com/ugd/ade4e6_5e2b5f3847354dd095b63f8d71c9654e.pdf?index=true
    • https://bf730e4f-9164-49fe-bc5b-bb933838f3de.filesusr.com/ugd/66f3f9_25e80e3049d94d718a2c1e9d8d823310.pdf?index=true
    • https://99bca573-f64f-45df-8193-ec2716442ec3.filesusr.com/ugd/1cfe37_b31c627e49d745b78433127148c47376.pdf?index=true
    • https://e78350e1-a0ae-4916-b599-eebf9aae947d.filesusr.com/ugd/23a6c3_ac67b337f2634bfca0d2e066b44bb700.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000074c2.bin
e29d6e8762980d6765f6f89dcdd63b3350011841ac9cb979cf5949ec41fa69f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74C2 4976 bytes
font_01_sfnt_off000085be.bin
1818ee6f99ed3495b98b7abba8ed8a2982f99c0d401feef4099ade13b8cc8be5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85BE 10168 bytes
font_02_sfnt_off0000a899.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA899 4324 bytes

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